You are not special. You are not a beautiful and unique snowflake. You are the same organic and decaying matter as everyone else.

2016, Rebecca Nicholson, The Guardian, 28 November:

It’s particularly effective given that there’s really no comeback to it: in calling someone a snowflake, you are not just shutting down their opinion, but telling them off for being offended that you are doing so.

Marc Hokoana messaged a friend on Facebook the day before Yiannopoulos was scheduled to talk and said he “can’t wait for tomorrow”, according to police officials. In the Facebook message, obtained by a search warrant, he wrote: “I’m going to the Milo event and if the snowflakes get out off[sic] hand I’m just going to wade through their ranks and start cracking skulls.”

Someone (usually white) who was opposed to the abolition of slavery (Missouri, 1860's) [2]

The pejorative sense of "an overly sensitive person" arose from a still-common misconception that no two snowflakes are alike. "Snowflake" as a derogatory term was popularized by its use in the 1996 novel Fight Club, by Chuck Palahniuk (see quotation above), but the insult had existed for a significant amount of time prior to this, although not in popular use. In recent years, the meaning has expanded from "a person who believes they are unique" to also denote someone who is too sensitive and is easily offended, based on conceptions of snowflakes' fragility and weakness.